EP 2127285 A4 20130731 - TRANSMISSION SCHEME FOR UPLINK ACCESS IN A FDMA SYSTEM
Title (en)
TRANSMISSION SCHEME FOR UPLINK ACCESS IN A FDMA SYSTEM
Title (de)
ÜBERTRAGUNGSSCHEMA FÜR DEN UPLINK-ZUGANG IN EINEM FDMA-SYSTEM
Title (fr)
SCHÉMA DE TRANSMISSION POUR UN ACCÈS EN LIAISON MONTANTE DANS UN SYSTÈME FDMA
Publication
Application
Priority
- SE 2008050143 W 20080205
- US 67894607 A 20070226
Abstract (en)
[origin: US2008205451A1] Transmission scheme for the uplink of FDMA systems that improves performance in an interference-dominated system by using a pilot scheme that provides enough information so that channel estimates can be obtained for a particular user, but which at the same time makes it possible to use pilot patterns that are different in different cells so that co-channel interference is mitigated. A codeword is used to position a set of pilot symbols within a set of subcarriers wherein each subcarrier has a first pilot time slot and a second pilot time slot associated with one or more data time slots. The set of subcarriers are identified on which to transmit the composite signal and the first pilot time slots and the second pilot time slots are filled with the pilot symbols in accordance with the codeword. The composite signal is then formatted as a combination of modulated data and pilot signals.
IPC 8 full level
H04L 27/26 (2006.01); H04L 5/06 (2006.01)
CPC (source: EP US)
H04L 5/0007 (2013.01 - EP US); H04L 5/0048 (2013.01 - EP US); H04L 5/0058 (2013.01 - EP US)
Citation (search report)
- [XI] TOSHIBA CORPORATION: "UL Reference Signal Transmission for E-UTRA", 3GPP DRAFT; R1-071051, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. St. Louis, USA; 20070206, 6 February 2007 (2007-02-06), XP050105047
- [XI] NTT DOCOMO ET AL: "Orthogonal Pilot Channel in the Same Node B in Evolved UTRA Uplink", 3GPP DRAFT; R1-051142 UPLINK ORTHOGONAL PILOT STRUCTURE, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. San Diego, USA; 20051004, 4 October 2005 (2005-10-04), XP050100754
- [XI] NTT DOCOMO: "Multiplexing Method for Orthogonal Reference Signals for E-UTRA Uplink", 3GPP DRAFT; R1-061193 UL ORTHOGONAL PILOT CHANNEL, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Shanghai, China; 20060502, 2 May 2006 (2006-05-02), XP050102078
- [I] HUAWEI: "Uplink pilot for SC-FDMA", 3GPP DRAFT; R1-051191, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. San Diego, USA; 20051003, 3 October 2005 (2005-10-03), XP050100795
- [I] LG ELECTRONICS: "Uplink pilot for channel quality measurement", 3GPP DRAFT; R1-060537_UPLINK CQ PILOT, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Denver, USA; 20060208, 8 February 2006 (2006-02-08), XP050101474
- See references of WO 2008105719A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2008205451 A1 20080828; US 7720164 B2 20100518; EP 2127285 A1 20091202; EP 2127285 A4 20130731; JP 2010519882 A 20100603; JP 5266261 B2 20130821; WO 2008105719 A1 20080904
DOCDB simple family (application)
US 67894607 A 20070226; EP 08712783 A 20080205; JP 2009551969 A 20080205; SE 2008050143 W 20080205